"Comparative Study of Parallel Multipliers Based on Recoding Techniques" by Vishal Abrol

Date of Award

1993

Degree Type

Thesis

Degree Name

Master of Science in Electrical Engineering (MSEE)

Department

Electrical Engineering

First Advisor

Jien-Chung Lo

Abstract

A 5-bit recoding scheme reduces the number of partial products by a factor of four in an array multiplier, but at the same time increases the complexity of recoding and partial products generation process. There is no concrete evidence yet , about efficiency or deficiency for applying 5-bit recoding. In this study, we compare the area-time performance of the VLSI implementation of 5-bit recoding array multipliers to its 3-bit recoding counterparts. Conditions in which a 5-bit multipliers is more efficient in terms of area and propagation time than that of a 3-bit recoding one are derived for given word lengths. We then present an example 5-bit recoding circuit design and its VLSI layout that yields the area-time efficiency.

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